But are there any medical reports or witness testimonies? Perhaps a sound recording by someone in proximity?
Microwaves cause burns, but bleeding from the nose seems very unlikely. Sonic weapons can cause bleeding, but not sure about eyes. Explosions cause both.
But eventually, what would happen is: a wounded solider ends up in hospital, and journalists interview him - there should be such an interview somewhere.
Edit: couldn't find an original source, but found something:
“At one point, they launched something; I don’t know how to describe it,” the witness said. “It was like a very intense sound wave. Suddenly I felt like my head was exploding from the inside.”
The effects were immediate and horrific.
“We all started bleeding from the nose,” he said. “Some were vomiting blood. We fell to the ground, unable to move. We couldn’t even stand up after that sonic weapon — or whatever it was.”
If the report is authentic, the soldier who witnessed its use did his math right. Sonic weapon of unspecified type. US troops having to launch it suggests it had close-range effect.
Well, he's an assistant professor in an institute in the Qatar emirate - which is not a democratic state. If he gets the emir's money, he sings the emir's song.
Some of the sources he offers are posts on Twitter. He should offer better than that.
Some of the opinion he offers contradicts what has been recorded.
But in some things, he also brings information that's factual. For example, conditions in prisons run by the SDF were actually very poor and unhealthy, and the AANES political project failed to integrate its large Arab population as eager participants. They tried, but it didn't work. Then they stopped trying.
Holding positions in Arab-majority areas would have only worked if Arabs had been eager to participate in the SDF, but it was too much of a Kurdish project, and people became corrupt over the years.
Holding positions might have still worked if the river Euphrates had been the border between the two factions, but this would have required an armed-to-the-teeth effort at the river to prevent a crossing. And likely, the fragile economy of the AANES region and its very limited trade connections did not enable such a method.
Which does not mean that everything is over. International pressure should be brought to bear to allow evacuations from, and food and medical supplies to Kobani. Syrian government should be told by foreign governments that they will get renewed sanctions if they fight against civilians.